Unable to upload content / Unable to see content with a specific user

[User_Name]

Dear community,

I have a couple of users, all of them except one (thomas) are able to login, to browse the sites and to view the documents and folders.
These users are able to create folders and upload content, except PDF files! They _cannot_ upload any PDF documents (neither via ftp, nor via Web, nor via CIFS) (*). Via CIFS and FTP 0 Byte files are created. When uploading a PDF document via Web, these users get the following error message:

<size> KB (Failure: Can not get preferences for thomas because there was an error pasing the JSON data.)

The user thomas is the one mentioned above, He is _not_ able to do all these things written.
This user is able to login, he can see his dashboard, but he sees an error message in the section "My documents": "Error loading items". He can also search for sites and open sites and can see the site's dashboard, but he also gets the same error message there in the section "Site content": "Error loading items".

When he enters the document library section, the user get a "No items" message" and can not see any documents nor folders. but when he searches for documents, he can find documents and is also able to open that documents. And, if this user is using CIFS, he _can_ also see and open all documents and folders.

Also to mention: As an administrator, when I go to Admin Tools -> Users and search for users, I get the list of users, but all the users show 0 Bytes in the Usage column.

Another one: We had a power outage some time ago and - I think - these symptoms appear since then.

Logfiles:

When logging in with this problematic user thomas, I can see the following error messages in alfresco.log:

2020-07-07 11:41:26,228 ERROR [org.springframework.extensions.webscripts.AbstractRuntime] [http-apr-15080-exec-2] Exception from executeScript - redirecting to status template error: 06070109 Wrapped Exception (with status template): 06070461 Failed to execute script 'classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js': 06070460 Can not get preferences for thomas because there was an error parsing the JSON data.
org.springframework.extensions.webscripts.WebScriptException: 06070109 Wrapped Exception (with status template): 06070461 Failed to execute script 'classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js': 06070460 Can not get preferences for thomas because there was an error parsing the JSON data.
at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1127)
at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:171)
at org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:482)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:457)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:551)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:619)
at org.alfresco.repo.web.scripts.RepositoryContainer.executeScriptInternal(RepositoryContainer.java:399)
at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:280)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:378)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:209)
at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.AprEndpoint$SocketWithOptionsProcessor.run(AprEndpoint.java:2403)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.alfresco.scripts.ScriptException: 06070461 Failed to execute script 'classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js': 06070460 Can not get preferences for thomas because there was an error parsing the JSON data.
at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:204)
at org.alfresco.repo.processor.ScriptServiceImpl.execute(ScriptServiceImpl.java:212)
at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:174)
at org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:102)
at org.springframework.extensions.webscripts.AbstractWebScript.executeScript(AbstractWebScript.java:1364)
at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:86)
... 33 more
Caused by: org.alfresco.error.AlfrescoRuntimeException: 06070460 Can not get preferences for thomas because there was an error parsing the JSON data.
at org.alfresco.repo.preference.PreferenceServiceImpl.getPreferences(PreferenceServiceImpl.java:257)
at org.alfresco.repo.preference.script.ScriptPreferenceService.getPreferences(ScriptPreferenceService.java:73)
at sun.reflect.GeneratedMethodAccessor754.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:126)
at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:225)
at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5._c_Common_getFavourites_11(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js:666)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5.call(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js)
at org.mozilla.javascript.optimizer.OptRuntime.callProp0(OptRuntime.java:85)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5._c_getDoclist_20(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js:1070)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5.call(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js)
at org.mozilla.javascript.optimizer.OptRuntime.callName0(OptRuntime.java:74)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5._c_script_0(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js:1348)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5.call(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3091)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5.call(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js)
at org.mozilla.javascript.gen.classpath__alfresco_templates_webscripts_org_alfresco_slingshot_documentlibrary_doclist_get_js_5.exec(classpath*:alfresco/templates/webscripts/org/alfresco/slingshot/documentlibrary/doclist.get.js)
at org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:502)
at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:200)
... 38 more
Caused by: org.json.JSONException: A JSONObject text must begin with '{' at character 0
at org.json.JSONTokener.syntaxError(JSONTokener.java:410)
at org.json.JSONObject.<init>(JSONObject.java:179)
at org.json.JSONObject.<init>(JSONObject.java:402)
at org.alfresco.repo.preference.PreferenceServiceImpl.getPreferencesObject(PreferenceServiceImpl.java:154)
at org.alfresco.repo.preference.PreferenceServiceImpl.getPreferences(PreferenceServiceImpl.java:203)
... 59 more

Steps I've taken already:

- Restarted Alfresco
- Tried to repair SOLR Index with <url>/solr4/admin/cores?action=FIX
- Rebuilt the SOLR Index following the instructions in the documentation

For now I got stuck and have no idea where to search further. Maybe there is a database corruption in postgres, but I have no idea how to check the postgres tables. Is there something like myisamchk or CHECK TABLE <table> for Postgres?

Does anyone have an idea, where I should go now?

Thank you very much for your time!

Regards,
Thomas (the problematic user ;-)

(*) UPDATE 1:

I was able to confine the problem a bit, as users (except thomas, as he cannot see any folders in the Web GUI) are able to upload any files (also PDFs), as long as there is no rule defined in the containing folder, which tries to send email notifications! The user thomas _can_ upload files to folders without such a rule via CIFS as well!

[kintu_barot]

As you already have performed primary steps to solve this.

I would suggest you check with the permission or the membership of that user.

I would also suggest you check with the rules or any other configurations or customizations you have made.

If the system is behaving well with the other users then the problem may be with the permissions/rights of that user.